too much ARP traffic! help!

  • Thread starter Thread starter Michael
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M

Michael

Why does our Cisco 3620 router broadcast hundreds of ARP replies per day
that simply resolve its own hardware address to its own IP address?

I kid you not.

In each ARP packet, the target and sender MAC addresses are the same (the
router's)! Also, target and sender IP addresses are the same (yep, the
router's! )

How is this possible?

The router is connected to a Watchguard Firebox that is involved in NAT.
 
Looks like a bug with Cisco Box. You may want to post this issue to Cisco
folks. I think there are methods to filter ARP packets on Cisco Box.
 
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